22010121020002 has 4 divisors (see below), whose sum is σ = 33015181530006. Its totient is φ = 11005060510000.

The previous prime is 22010121019987. The next prime is 22010121020003. The reversal of 22010121020002 is 20002012101022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20093084165961 + 1917036854041 = 4482531^2 + 1384571^2 .

It is not an unprimeable number, because it can be changed into a prime (22010121020003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5502530254999 + ... + 5502530255002.

Almost surely, 2^{22010121020002} is an apocalyptic number.

22010121020002 is a deficient number, since it is larger than the sum of its proper divisors (11005060510004).

22010121020002 is a wasteful number, since it uses less digits than its factorization.

22010121020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11005060510003.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22010121020002 its reverse (20002012101022), we get a palindrome (42012133121024).

The spelling of 22010121020002 in words is "twenty-two trillion, ten billion, one hundred twenty-one million, twenty thousand, two".